Predicted to enable protein-disulfide reductase activity. Predicted to be involved in several processes, including mitochondrion organization; peptidyl-cysteine oxidation; and protein maturation by protein folding. Predicted to act upstream of or within several processes, including cellular response to leukemia inhibitory factor; mitochondrial DNA repair; and regulation of protein export from nucleus. Predicted to be located in mitochondrion. Predicted to be active in mitochondrial intermembrane space. Orthologous to human CHCHD4 (coiled-coil-helix-coiled-coil-helix domain containing 4). [provided by Alliance of Genome Resources, Apr 2022]