Enables retinoic acid 4-hydroxylase activity. Involved in retinoic acid catabolic process. Acts upstream of or within several processes, including anterior/posterior pattern specification; cellular response to retinoic acid; and neural crest cell development. Predicted to be located in endoplasmic reticulum and membrane. Is expressed in several structures, including alimentary system; central nervous system; embryo mesenchyme; extraembryonic component; and sensory organ. Orthologous to human CYP26A1 (cytochrome P450 family 26 subfamily A member 1). [provided by Alliance of Genome Resources, Apr 2022]