Predicted to enable mRNA 3'-UTR binding activity. Involved in regulation of mRNA stability. Located in P granule and cytosol. Part of cytoplasmic exosome (RNase complex). Is expressed in dorsal root ganglion; limb; neural tube; reproductive system; and urinary system. Orthologous to human CARHSP1 (calcium regulated heat stable protein 1). [provided by Alliance of Genome Resources, Apr 2022]