May contribute to resistance to some drugs, such as deoxycholate, sodium dodecyl sulfate and nalidixic acid, in the absence of BepD and BepE. Probably part of a tripartite efflux pump, which is composed of an outer membrane efflux protein, an inner membrane protein and a protein that expands the periplasmic space. Could form a tripartite pump with BepC and BepF. Induced in the absence of BepDE. Shows no differences in the resistance profile to different dyes, detergents and antimicrobials. Belongs to the resistance-nodulation-cell division (RND) (TC 2.A.6) family.