Predicted to enable mRNA binding activity. Predicted to be involved in several processes, including regulation of gene expression; regulation of megakaryocyte differentiation; and thrombopoietin-mediated signaling pathway. Predicted to act upstream of or within several processes, including circulatory system development; regulation of transcription by RNA polymerase II; and spleen development. Predicted to be located in nuclear speck. Predicted to be part of RNA N6-methyladenosine methyltransferase complex. Predicted to be active in nucleus. Orthologous to human RBM15 (RNA binding motif protein 15). [provided by Alliance of Genome Resources, Apr 2022]