ABC-type transporter; part of the gene cluster that mediates the biosynthesis of the sesterterpenes ophiobolins, fungal phytotoxins with potential anti-cancer activities (PubMed:27116000). Acts as a specific transporter involved in ophiobolins secretion (By similarity). Belongs to the ABC transporter superfamily. ABCG family. PDR (TC 3.A.1.205) subfamily.