Predicted to enable endoribonuclease activity; single-stranded RNA binding activity; and zinc ion binding activity. Predicted to be involved in RNA phosphodiester bond hydrolysis, endonucleolytic. Located in mitochondrion. Is expressed in brain ventricular layer; liver lobe; lung; renal cortex; and submandibular gland primordium. Orthologous to human LACTB2 (lactamase beta 2). [provided by Alliance of Genome Resources, Apr 2022]