$5.50, AK at bubble, 2 shortstacks

[Minos]

Button seems to be a little bit too tight considering his stack size. BB seems to be a solid player who has at least basic understanding of reasonable bubble play.

Easy call here?
While playing, I really considered folding this hand. I thought that BB would call very tight when i call, as he had to beat me and button. But I don't want to fold a strong hand here and watch BB doubling up, which would leave me in an very bad shape.
But SNGWizard tells me that this is a fold if BBs calling range is less than 55%. And I really can't imagine him calling this wide. Is this really a fold, is this a spot where ICM is not accurate or did I just misjudge BBs calling range? What should be a reasonable calling range for BB if I call?


Titan Poker 150.00/300.00, hand converted by the iPoker Converter at Talking-Poker

Button ($7970.00)
Hero ($770.00)
BB ($590.00)
UTG ($5670.00)

Preflop: Hero is in the SB with A K
1 fold, Button raises to 900.00, Hero?