Catalyzes the conversion of limonene-1,2-epoxide to limonene-1,2-diol. Can use both the (-) and (+) isomers of limonene-1,2-epoxide as substrates and also has some activity with 1-methylcyclohexene oxide, cyclohexene oxide and indene oxide as substrates. H2O + limonene 1,2-epoxide = limonene-1,2-diol Optimum pH is 7. Optimum temperature is 50 degrees Celsius. Terpene metabolism; (4R)-limonene degradation; (1S,4R)-1-hydroxylimonen-2-one from (4R)-limonene: step 2/3. Monomer. By growth on monoterpenes. Belongs to the limonene-1,2-epoxide hydrolase family.