Ownership of Created Database Objects
The user who creates an owner-privileged UDR owns any database objects that the UDR creates when it executes, unless some other owner is specified for the object. In other words, the UDR owner, not the user who executes the owner-privileged UDR, is the owner of any database objects created by the UDR unless another owner is specified in the DDL statement that creates the database object.
In the case of a DBA-privileged UDR, however, the user who executes the UDR, not the UDR owner, owns any database objects that the UDR creates, unless some other owner is specified for the database object within the UDR.
For examples, see Ownership of Created Database Objects in the description of the CREATE FUNCTION statement.