Enables cis-stilbene-oxide hydrolase activity; enzyme binding activity; and epoxide hydrolase activity. Involved in several processes, including cellular response to glucocorticoid stimulus; diol biosynthetic process; and liver development. Located in intracellular membrane-bounded organelle and plasma membrane. Human ortholog(s) of this gene implicated in several diseases, including Leber hereditary optic neuropathy; anemia (multiple); hematologic cancer (multiple); respiratory system disease (multiple); and toxic encephalopathy. Orthologous to human EPHX1 (epoxide hydrolase 1). [provided by Alliance of Genome Resources, Apr 2022]