Performs an essential function in the generation of cytoplasmic iron-sulfur proteins by mediating the ATP-dependent export of Fe/S cluster precursors synthesized by NFS1 and other mitochondrial proteins (By similarity). Hydrolyzes ATP (By similarity). Binds glutathione and may function by transporting a glutathione-conjugated iron-sulfur compound (By similarity). Homodimer. Belongs to the ABC transporter superfamily. ABCB family. Heavy Metal importer (TC 3.A.1.210) subfamily.