Predicted to enable oxysterol 7-alpha-hydroxylase activity and steroid 7-alpha-hydroxylase activity. Predicted to be involved in bile acid biosynthetic process and cholesterol homeostasis. Predicted to act upstream of or within cholesterol catabolic process. Predicted to be located in endoplasmic reticulum membrane. Orthologous to human CYP39A1 (cytochrome P450 family 39 subfamily A member 1). [provided by Alliance of Genome Resources, Apr 2022]