all-trans retinoic acid 4-hydrolase activity
Catalysis of the reaction: all-trans-retinoate + O2 + reduced [NADPH--hemoprotein reductase] = all-trans-(4S)-hydroxyretinoate + H+ + H2O + oxidized [NADPH--hemoprotein reductase].
GO:0008401
retinoic acid 4-hydroxylase activity
is_a