Enables monooxygenase activity. Acts upstream of or within response to bacterium. Located in endoplasmic reticulum. Is expressed in several structures, including cardiovascular system; exocrine gland; foregut; liver and biliary system; and white fat. Human ortholog(s) of this gene implicated in several diseases, including acoustic neuroma; fatty liver disease; gastrointestinal system cancer (multiple); liver disease (multiple); and lung disease (multiple). Orthologous to human CYP2E1 (cytochrome P450 family 2 subfamily E member 1). [provided by Alliance of Genome Resources, Apr 2022]