Efflux pump that provides the dual role of gliotoxin export and self-protection by allowing the fungus to evade the harmful effect of its own gliotoxin production (PubMed:15979823, PubMed:15707846, PubMed:24847038, PubMed:26150413). Moreover, it contributes also to the virulence through gliotoxin secretion (PubMed:24847038). Expression is also under the control of the gipA transcription factor (PubMed:24784729). Increases the susceptibility to gliotoxin (PubMed:24847038). Leads to complete deficient gliotoxin secretion but still retains the ability to efflux bisdethiobis(methylthio)gliotoxin (BmGT) (PubMed:26150413). Leads to increased survival of infected mice (PubMed:24847038). Belongs to the major facilitator superfamily.