Calling Postgresql Function to delete user data

Hi ,
I have created this function to remove UserDataAccountid
from both tables
UserAccountDetails and UserAC
CREATE OR REPLACE FUNCTION DeleteUserData(ACDetailsID int[])
RETURNS void AS $$
DECLARE _id int;
BEGIN
  -- postgresql has no table type, use a int array instead
  FOR _id IN array_lower(ACDetailsID,1) .. array_upper(ACDetailsID,1)
  LOOP
      DELETE FROM UserAccountDetails WHERE UserDataAcountId=
_id;
      DELETE FROM UserAC WHERE UserDataAcountId= _id;
    END;
  END LOOP;
  EXCEPTION WHEN OTHERS THEN
    RAISE WARNING 'some issue %', SQLERRM;
END;
$$ LANGUAGE plpgsql;
 
Now I am calling this function to delete userdataacountid
from both tables, say i have a user with userdataacountid '5', how can i delete
this user by calling this function , i have tried

select DeleteUserData(5);
and
select * from DeleteUserData(5);

its not working ,
thanks