54 of hearts - should I call preflop?

[milesdyson]

Unfortunately this is my first (omgosh) hand at this table.

Party Poker 0.001/0.002 Hold'em (6 max, 5 handed)

Preflop: Hero is BB with 5[img]/images/graemlins/heart.gif[/img], 4[img]/images/graemlins/heart.gif[/img].
UTG calls, MP calls, <font color="#CC3333">Button raises</font>, SB calls, Hero calls, <font color="#CC3333">UTG 3-bets</font>, MP folds, <font color="#CC3333">Button caps</font>, SB calls, Hero ... ?