Predicted to enable farnesyltranstransferase activity. Predicted to be involved in cellular respiration; heme biosynthetic process; and respiratory chain complex IV assembly. Predicted to act upstream of or within several processes, including cytochrome complex assembly; heme A biosynthetic process; and mitochondrial fission. Predicted to be located in cytosol and nucleolus. Predicted to be part of cytochrome complex. Predicted to be active in mitochondrion. Human ortholog(s) of this gene implicated in cytochrome-c oxidase deficiency disease. Orthologous to human COX10 (cytochrome c oxidase assembly factor heme A:farnesyltransferase COX10). [provided by Alliance of Genome Resources, Apr 2022]