Sql Server SELECT statement using '=*'

I inherited some code which uses a dynamic Sql Server SELECT statement. The statement uses an Equal Sign, Asterisk (=*) as part of the WHERE clause like this:

SELECT
LocalChangeBoard_Sign_RFC_Parm.LcbBoardName,
RequestForChange_LCB_Signature.LcbApproveFlag AS LcbApproveFlag,
LocalChangeBoard_Sign_RFC_Parm.LcbBoardID
FROM RequestForChange_LCB_Signature ,LocalChangeBoard_Sign_RFC_Parm
WHERE RequestForChange_LCB_Signature.LcbApproveFlag = 1
AND (RequestForChange_LCB_Signature.LcbBoardID =* LocalChangeBoard_Sign_RFC_Parm.LcbBoardID )
AND (LocalChangeBoard_Sign_RFC_Parm.ActiveFlag = 'A')
AND (RequestForChange_LCB_Signature.RequestForChangeID = @RfcID)
ORDER BY LocalChangeBoard_Sign_RFC_Parm.LcbBoardName
 
I have no idea what this does. Can you help?