Predicted to enable cytochrome-c oxidase activity. Involved in mitochondrial respirasome assembly and regulation of oxidative phosphorylation. Located in mitochondrial respirasome. Is expressed in several structures, including alimentary system; facial bone primordium; nervous system; respiratory system; and sensory organ. Orthologous to human COX7A2L (cytochrome c oxidase subunit 7A2 like). [provided by Alliance of Genome Resources, Apr 2022]