Predicted to contribute to siRNA binding activity. Predicted to be involved in heterochromatin assembly by small RNA; neural crest cell development; and regulation of alternative mRNA splicing, via spliceosome. Predicted to be located in endoplasmic reticulum. Predicted to be active in nucleus. Orthologous to human FAM172A (family with sequence similarity 172 member A). [provided by Alliance of Genome Resources, Apr 2022]