MFS-type transporter; part of the gene cluster that mediates the biosynthesis of viriditoxin, one of the 'classical' secondary metabolites produced by fungi and that has antibacterial activity (PubMed:31304040). Is not essential for viriditoxin production (PubMed:31304040). Does not affect the production of viriditoxin but leads to a sporulation defect. Belongs to the major facilitator superfamily. TCR/Tet family.