diff --git a/src/plugins/qmldesigner/designercore/projectstorage/projectstorage.h b/src/plugins/qmldesigner/designercore/projectstorage/projectstorage.h
index eb7a7feee96..5e565d15918 100644
--- a/src/plugins/qmldesigner/designercore/projectstorage/projectstorage.h
+++ b/src/plugins/qmldesigner/designercore/projectstorage/projectstorage.h
@@ -190,6 +190,12 @@ public:
             .template valuesWithTransaction<Utils::SmallString>(32, &typeId);
     }
 
+    std::vector<Utils::SmallString> functionDeclarationNames(TypeId typeId) const
+    {
+        return selectFuncionDeclarationNamesForTypeStatement
+            .template valuesWithTransaction<Utils::SmallString>(32, &typeId);
+    }
+
     Utils::optional<Utils::SmallString> propertyName(PropertyDeclarationId propertyDeclarationId) const
     {
         return selectPropertyNameStatement.template optionalValueWithTransaction<Utils::SmallString>(
@@ -2955,6 +2961,16 @@ public:
         "SELECT name FROM typeChain JOIN signalDeclarations "
         "  USING(typeId) ORDER BY name",
         database};
+    mutable ReadStatement<1, 1> selectFuncionDeclarationNamesForTypeStatement{
+        "WITH RECURSIVE "
+        "  typeChain(typeId) AS ("
+        "      VALUES(?1)"
+        "    UNION ALL "
+        "      SELECT prototypeId FROM types JOIN typeChain "
+        "        USING(typeId) WHERE prototypeId IS NOT NULL)"
+        "SELECT name FROM typeChain JOIN functionDeclarations "
+        "  USING(typeId) ORDER BY name",
+        database};
 };
 extern template class ProjectStorage<Sqlite::Database>;
 } // namespace QmlDesigner
diff --git a/tests/unit/unittest/projectstorage-test.cpp b/tests/unit/unittest/projectstorage-test.cpp
index 802a5743e57..a82f64c44a6 100644
--- a/tests/unit/unittest/projectstorage-test.cpp
+++ b/tests/unit/unittest/projectstorage-test.cpp
@@ -787,7 +787,7 @@ protected:
                  Storage::Synchronization::ImportedType{"Object"},
                  Storage::PropertyDeclarationTraits::IsList
                      | Storage::PropertyDeclarationTraits::IsReadOnly}},
-            {},
+            {Storage::Synchronization::FunctionDeclaration{"values", {}, {}}},
             {Storage::Synchronization::SignalDeclaration{"valuesChanged", {}}}});
         package.types.push_back(Storage::Synchronization::Type{
             "QObject2",
@@ -806,7 +806,7 @@ protected:
                  Storage::Synchronization::ImportedType{"Object3"},
                  Storage::PropertyDeclarationTraits::IsList
                      | Storage::PropertyDeclarationTraits::IsReadOnly}},
-            {},
+            {Storage::Synchronization::FunctionDeclaration{"items", {}, {}}},
             {Storage::Synchronization::SignalDeclaration{"itemsChanged", {}}}});
         package.types.push_back(Storage::Synchronization::Type{
             "QObject3",
@@ -825,7 +825,7 @@ protected:
                  Storage::Synchronization::ImportedType{"Object2"},
                  Storage::PropertyDeclarationTraits::IsList
                      | Storage::PropertyDeclarationTraits::IsReadOnly}},
-            {},
+            {Storage::Synchronization::FunctionDeclaration{"objects", {}, {}}},
             {Storage::Synchronization::SignalDeclaration{"objectsChanged", {}}}});
 
         package.updatedSourceIds.push_back(sourceId1);
@@ -5741,4 +5741,48 @@ TEST_F(ProjectStorage, GetOnlySignalDeclarationNamesFromUpIntoThePrototypeChain)
     ASSERT_THAT(signalNames, ElementsAre("itemsChanged", "valuesChanged"));
 }
 
+TEST_F(ProjectStorage, GetFunctionDeclarationNames)
+{
+    auto package{createPackageWithProperties()};
+    storage.synchronize(package);
+    auto typeId = fetchTypeId(sourceId1, "QObject3");
+
+    auto functionNames = storage.functionDeclarationNames(typeId);
+
+    ASSERT_THAT(functionNames, ElementsAre("items", "objects", "values"));
+}
+
+TEST_F(ProjectStorage, GetFunctionDeclarationNamesAreOrdered)
+{
+    auto package{createPackageWithProperties()};
+    storage.synchronize(package);
+    auto typeId = fetchTypeId(sourceId1, "QObject3");
+
+    auto functionNames = storage.functionDeclarationNames(typeId);
+
+    ASSERT_THAT(functionNames, StringsAreSorted());
+}
+
+TEST_F(ProjectStorage, GetNoFunctionDeclarationNamesForInvalidTypeId)
+{
+    auto package{createPackageWithProperties()};
+    storage.synchronize(package);
+    auto typeId = fetchTypeId(sourceId1, "WrongObject");
+
+    auto functionNames = storage.functionDeclarationNames(typeId);
+
+    ASSERT_THAT(functionNames, IsEmpty());
+}
+
+TEST_F(ProjectStorage, GetOnlyFunctionDeclarationNamesFromUpIntoThePrototypeChain)
+{
+    auto package{createPackageWithProperties()};
+    storage.synchronize(package);
+    auto typeId = fetchTypeId(sourceId1, "QObject2");
+
+    auto functionNames = storage.functionDeclarationNames(typeId);
+
+    ASSERT_THAT(functionNames, ElementsAre("items", "values"));
+}
+
 } // namespace