Predicted to enable RNA binding activity and ubiquitin protein ligase activity. Predicted to be involved in nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay; protein polyubiquitination; and ubiquitin-dependent protein catabolic process. Predicted to be located in P-body. Predicted to be active in cytoplasmic stress granule. Orthologous to human RC3H1 (ring finger and CCCH-type domains 1).