Enables kynurenine 3-monooxygenase activity. Involved in kynurenine metabolic process. Located in mitochondrial inner membrane. Is expressed in male reproductive gland or organ; nervous system; and tongue. Human ortholog(s) of this gene implicated in schizophrenia. Orthologous to human KMO (kynurenine 3-monooxygenase). [provided by Alliance of Genome Resources, Apr 2022]