$6.5 - AJ in BB

[mattiesmat]

This might be a (very) basic situation and question for you, but i have some trouble playing AJ (early).
I throw away AJ from early position, open raise from late and limp from MP sometimes, during the first levels.
Is that any good?
In this hand there were 3 limpers and I was in BB, out of position against 2 of them.
Should I raise or check here and why?

PokerStars No-Limit Hold'em Tourney, Big Blind is t30 (6 handed) by Hand Converter CG

UTG (t3515)
MP (t1050)
CO (t4460)
Button (t1315)
SB (t1735)
Hero (t1425)

Preflop: Hero is BB with A[img]/images/graemlins/diamond.gif[/img], J[img]/images/graemlins/heart.gif[/img].
<font color="#666666">2 folds</font>, CO calls t30, Button calls t30, SB completes, Hero ??, 2/3 players left to act