Predicted to enable 3'-5' exonuclease activity and RNA binding activity. Predicted to be involved in defense response to virus; negative regulation of viral genome replication; and nucleobase-containing compound catabolic process. Predicted to be located in cytoplasm and nuclear lumen. Predicted to be active in nucleus. Orthologous to human ISG20 (interferon stimulated exonuclease gene 20). [provided by Alliance of Genome Resources, Apr 2022]