Predicted to enable oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, NAD(P)H as one donor, and incorporation of one atom of oxygen; retinoic acid 4-hydroxylase activity; and retinoic acid binding activity. Involved in positive regulation of gene expression; positive regulation of tongue muscle cell differentiation; and tongue morphogenesis. Acts upstream of or within several processes, including cellular response to retinoic acid; male gamete generation; and skin development. Predicted to be located in cytoplasm. Is expressed in several structures, including alimentary system; brain; genitourinary system; limb; and sensory organ. Orthologous to human CYP26B1 (cytochrome P450 family 26 subfamily B member 1). [provided by Alliance of Genome Resources, Apr 2022]