Exports glutathione-coordinated iron-sulfur clusters such as [2Fe-2S]-(GS)4 cluster from the mitochondria to the cytosol in an ATP-dependent manner allowing the assembly of the cytosolic iron-sulfur (Fe/S) cluster-containing proteins and participates in iron homeostasis (By similarity). Moreover, through a functional complex formed of ABCB7, FECH and ABCB10, also plays a role in the cellular iron homeostasis, mitochondrial function and heme biosynthesis (By similarity). In cardiomyocytes, regulates cellular iron homeostasis and cellular reactive oxygen species (ROS) levels through its interaction with COX4I1 (PubMed:31511561). May also play a role in hematopoiesis (By similarity). (glutathione)4[2Fe(III)-2S] cluster(in) + ATP + H2O = (glutathione)4[2Fe(III)-2S] cluster(out) + ADP + H(+) + phosphate Homodimer or heterodimer. Interacts with C10orf88/PAAT. Forms a complex with ABCB10 and FECH, where a dimeric FECH bridges ABCB7 and ABCB10 homodimers; this complex may be required for cellular iron homeostasis, mitochondrial function and heme biosynthesis (By similarity). Interacts with FECH (By similarity). Interacts with ATP5F1A (PubMed:31511561). Interacts with COX4I1; this interaction allows the regulation of cellular iron homeostasis and cellular reactive oxygen species (ROS) levels in cardiomyocytes (PubMed:31511561). Belongs to the ABC transporter superfamily. ABCB family. Heavy Metal importer (TC 3.A.1.210) subfamily.