Predicted to enable heme binding activity. Predicted to be involved in mitochondrial electron transport, cytochrome c to oxygen; mitochondrial electron transport, ubiquinol to cytochrome c; and positive regulation of cysteine-type endopeptidase activity involved in apoptotic process. Predicted to act upstream of or within hydrogen peroxide metabolic process and positive regulation of intrinsic apoptotic signaling pathway. Predicted to be located in respirasome. Predicted to be active in mitochondrial intermembrane space. Orthologous to human CYCTP (cytochrome c, testis, pseudogene). [provided by Alliance of Genome Resources, Apr 2022]