MFS-type transporter involved in penicillin production, most likely through the translocation of side-chain precursors (phenylacetic acid and phenoxyacetic acid) from the cytosol to the peroxisomal lumen across the peroxisomal membrane. Probably recruited to the peroxisomal membrane by pex19. The peroxisomal targeting signal allows recruitment to the peroxisomal membrane by pex19. Leads to a clear reduction in benzylpenicillin production. Belongs to the major facilitator superfamily. DHA1 family. Polyamines/proton antiporter (TC 2.A.1.2.16) subfamily.