Enables monooxygenase activity. Involved in several processes, including positive regulation of macromolecule biosynthetic process; response to gonadotropin; and response to steroid hormone. Located in nucleus. Biomarker of breast adenocarcinoma and esophagus squamous cell carcinoma. Human ortholog(s) of this gene implicated in Peters anomaly; anterior segment dysgenesis 6; breast cancer; glaucoma (multiple); and lung squamous cell carcinoma. Orthologous to human CYP1B1 (cytochrome P450 family 1 subfamily B member 1). [provided by Alliance of Genome Resources, Apr 2022]