Predicted to enable cytochrome-c oxidase activity. Located in mitochondrion. Is expressed in several structures, including alimentary system; liver; nervous system; nose; and urinary system. Human ortholog(s) of this gene implicated in cytochrome-c oxidase deficiency disease. Orthologous to human COX8A (cytochrome c oxidase subunit 8A). [provided by Alliance of Genome Resources, Apr 2022]