SQL & PL/SQL

I need to build Views in SQL Developer based on queries with unbound parameters.

Can I use SYS_REFCURSOR in a Function to return a Recordset that can be referenced by a View?

Example:

create or replace
FUNCTION aaaRelationships
    (
      UpdateMonth IN aaProjectList.WDMonth%type)
    RETURN SYS_REFCURSOR
  AS
    Relationships_rc SYS_REFCURSOR;
  BEGIN
    OPEN Relationships_rc FOR SELECT TASKPRED.proj_id, aaProjectList.WDMonth FROM admuser.TASKPRED LEFT JOIN
    (SELECT aaProjectList.proj_id, aaProjectList.WDMonth FROM aaProjectList
    ) aaProjectList ON TASKPRED.Proj_ID=aaProjectList.proj_id WHERE aaProjectList.WDMonth = UpdateMonth;
    RETURN Relationships_rc;
  END;

Result:

DECLARE
  UPDATEMONTH VARCHAR2(32);
  v_Return SYS_REFCURSOR;
BEGIN
  UPDATEMONTH := NULL;
  v_Return := AAARELATIONSHIPS(
    UPDATEMONTH => UPDATEMONTH
  );
  -- Modify the code to output the variable
  -- DBMS_OUTPUT.PUT_LINE('v_Return = ' || v_Return);
END;

Thank you.