Enables mRNA 3'-UTR binding activity. Predicted to be involved in regulation of translation and spliceosomal snRNP assembly. Predicted to act upstream of or within RNA splicing; mRNA processing; and translation. Predicted to be located in cytosol and nuclear body. Predicted to be part of SMN complex and SMN-Gemin2 complex. Is expressed in heart ventricle. Orthologous to human GEMIN5 (gem nuclear organelle associated protein 5). [provided by Alliance of Genome Resources, Apr 2022]