Predicted to enable 3'-tRNA processing endoribonuclease activity and tRNA-specific ribonuclease activity. Predicted to be involved in mitochondrial tRNA 3'-trailer cleavage, endonucleolytic. Located in mitochondrial nucleoid. Is expressed in extraembryonic component. Human ortholog(s) of this gene implicated in combined oxidative phosphorylation deficiency 17. Orthologous to human ELAC2 (elaC ribonuclease Z 2). [provided by Alliance of Genome Resources, Apr 2022]