Catalyzes the hydrolysis of pyrethroids pesticides. Hydrolyzes cis-permethrin at approximately equal rate to trans-permethrin. (-)-trans-permethrin + H2O = (1S,3R)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate + (3-phenoxyphenyl)methanol + H(+) Inhibited by Hg(2+), Ag(+) and rho-chloromercuribenzoate. kcat is 1.05 sec(-1) with cis-permethrin as substrate. kcat is 1.14 sec(-1) with trans-permethrin as substrate. kcat is 0.288 sec(-1) with cypermethrin as substrate. kcat is 0.103 sec(-1) with fenvalerate as substrate. kcat is 0.016 sec(-1) with deltamethrin as substrate. kcat is 0.07 sec(-1) with malathion as substrate. Optimum pH is 7.0.