100NL AQ basic PF question

PokerStars No-Limit Hold'em, $1.00 BB (8 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

UTG ($185.90)
UTG+1 ($53)
MP1 ($39)
MP2 ($68.25)
CO ($59.80)
Button ($59)
SB ($30.95)
Hero ($100)

Preflop: Hero is BB with Q, A. UTG+1 posts a blind of $1.
1 fold, UTG+1 (poster) checks, MP1 raises to $5, 4 folds, Hero ???

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What's your move here against an unknown?

Fold it in a FR table.