PokerStars No-Limit Hold'em, $0.50 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

MP ($51.80)
CO ($183.20)
Hero ($50.25)
SB ($49.50)
BB ($50)
UTG ($44)

Preflop: Hero is Button with A, J.
2 folds, CO calls $0.50, Hero raises to $2.25, 1 fold, BB calls $1.75, CO calls $1.75.

Flop: ($7) A, 2, A (3 players)
BB checks, CO checks, Hero bets $5.5, BB calls $5.50, CO folds.

Turn: ($18) 9 (2 players)
BB bets $42.25 (All-In), Hero ???

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Villian is a complete unknown.

Do you make the turn call?