Is predicted to encode a protein with the following domains: PNPase/RNase PH domain superfamily; Exoribonuclease, phosphorolytic domain 1; Ribosomal protein S5 domain 2-type fold; 3' exoribonuclease family, domain 2; Exoribonuclease, phosphorolytic domain 2; Exoribonuclease, PH domain 2 superfamily; and 3' exoribonuclease family, domain 1. Is an ortholog of C. elegans crn-5. In C. elegans, crn-5 is involved in RNA processing and apoptotic DNA fragmentation.