Could be involved in detoxification of extraneous host-cell epoxides. Catalyzes the hydrolysis of small aromatic epoxide-containing substrates such as trans-1,3-diphenylpropene oxide, trans and cis-stilbene oxide, and terpenoid epoxide. an epoxide + H2O = an ethanediol Homodimer. Belongs to the AB hydrolase superfamily. Epoxide hydrolase family.