Predicted to enable RNA binding activity; ubiquitin protein ligase activity; and zinc ion binding activity. Predicted to be involved in nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay; protein polyubiquitination; and ubiquitin-dependent protein catabolic process. Located in cytoplasmic stress granule. Is expressed in several structures, including dorsal epidermis primordium; embryonic dorsal epidermis; embryonic head epidermis; embryonic ventral epidermis; and embryonic/larval salivary gland. Orthologous to human RC3H1 (ring finger and CCCH-type domains 1) and RC3H2 (ring finger and CCCH-type domains 2).