Predicted to enable identical protein binding activity and miRNA binding activity. Acts upstream of or within blastocyst formation; heart valve development; and ventricular septum development. Located in nucleus. Is expressed in several structures, including blood vessel layer; branchial arch; central nervous system; heart; and lung. Used to study amyotrophic lateral sclerosis type 21. Human ortholog(s) of this gene implicated in amyotrophic lateral sclerosis type 21. Orthologous to human MATR3 (matrin 3). [provided by Alliance of Genome Resources, Apr 2022]