Enables monooxygenase activity. Involved in response to organic cyclic compound and response to xenobiotic stimulus. Located in cytoplasm. Biomarker of mental depression. Human ortholog(s) of this gene implicated in acute lymphoblastic leukemia; acute myeloid leukemia; asthma; autoimmune hepatitis; and rhinitis. Orthologous to several human genes including CYP2D6 (cytochrome P450 family 2 subfamily D member 6). [provided by Alliance of Genome Resources, Apr 2022]