The enzyme pyrethroid hydrolase (EC 3.1.1.88, pyrethroid-hydrolyzing carboxylesterase, pyrethroid-hydrolysing esterase, pyrethroid-hydrolyzing esterase, pyrethroid-selective esterase, pyrethroid-cleaving enzyme, permethrinase, PytH, EstP; systematic name pyrethroid-ester hydrolase) catalyses the reaction
The enzyme is involved in degradation of pyrethroid pesticides.