diff --git a/stdlib/builtins.pyi b/stdlib/builtins.pyi
index 56c5a4d28af9..f3d8b5cf760a 100644
--- a/stdlib/builtins.pyi
+++ b/stdlib/builtins.pyi
@@ -23,7 +23,7 @@ from _typeshed import (
     SupportsWrite,
 )
 from io import BufferedRandom, BufferedReader, BufferedWriter, FileIO, TextIOWrapper
-from types import CodeType, TracebackType
+from types import CodeType, FunctionType, TracebackType
 from typing import (
     IO,
     AbstractSet,
@@ -764,13 +764,7 @@ class tuple(Sequence[_T_co], Generic[_T_co]):
     if sys.version_info >= (3, 9):
         def __class_getitem__(cls, __item: Any) -> GenericAlias: ...
 
-class function:
-    # TODO not defined in builtins!
-    __name__: str
-    __module__: str
-    __code__: CodeType
-    __qualname__: str
-    __annotations__: dict[str, Any]
+function: Type[FunctionType]
 
 class list(MutableSequence[_T], Generic[_T]):
     @overload