Predicted to enable RNA 7-methylguanosine cap binding activity and mRNA binding activity. Predicted to be involved in several processes, including mRNA export from nucleus; mRNA metabolic process; and positive regulation of mRNA processing. Predicted to act upstream of or within RNA processing and regulation of gene expression. Predicted to be located in cytosol; mitochondrion; and nucleoplasm. Predicted to be part of mRNA cap binding activity complex; nuclear cap binding activity complex; and ribonucleoprotein complex. Predicted to be active in nucleus. Is expressed in cerebellum granule cell layer; ovary; seminiferous tubule; spermatocyte; and spermatogonium. Orthologous to human NCBP1 (nuclear cap binding protein subunit 1). [provided by Alliance of Genome Resources, Apr 2022]