Predicted to enable single-stranded DNA exodeoxyribonuclease activity. Predicted to be involved in mitochondrial DNA replication and mitochondrial genome maintenance. Predicted to act upstream of or within DNA repair. Located in mitochondrion. Human ortholog(s) of this gene implicated in mitochondrial DNA depletion syndrome 11. Orthologous to human MGME1 (mitochondrial genome maintenance exonuclease 1). [provided by Alliance of Genome Resources, Apr 2022]