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