Predicted to be involved in cellular copper ion homeostasis and mitochondrial cytochrome c oxidase assembly. Predicted to be located in cytosol and mitochondrion. Predicted to be active in mitochondrial intermembrane space. Is expressed in cranial ganglion; dorsal root ganglion; nasal cavity epithelium; and trunk unsegmented mesenchyme. Orthologous to human COX19 (cytochrome c oxidase assembly factor COX19). [provided by Alliance of Genome Resources, Apr 2022]