ABC-type transmembrane transporter; part of the gene cluster that mediates the biosynthesis of 11'-deoxyverticillin A, one of the dimeric epipolythiodioxopiperazines (ETPs) from the verticillin family that are toxic secondary metabolites (PubMed:28376389). The verA multidrug transporter is probably involved in the secretion of 11'-deoxyverticillin A (Probable). Expression is regulated by the cluster-specific regulator verZ. Dicreases the production of 11'-deoxyverticillin A. Belongs to the ABC transporter superfamily. ABCB family. Multidrug resistance exporter (TC 3.A.1.201) subfamily.