Enables hypotaurine monooxygenase activity. Involved in taurine biosynthetic process. Acts upstream of or within energy homeostasis; negative regulation of fatty acid oxidation; and xenobiotic metabolic process. Predicted to be located in endoplasmic reticulum membrane. Is expressed in brain; cortic
al renal tubule; late tubule; and testis. Orthologous to human FMO1 (flavin containing dimethylaniline monoxygenase 1). [provided by Alliance of Genome Resources, Jul 2025]