Enables mRNA binding activity. Acts upstream of or within negative regulation of neuron differentiation; negative regulation of translation; and stem cell population maintenance. Located in P-body; cytosol; and nucleus. Is expressed in several structures, including cerebral cortex; early conceptus; epithelium; metanephros; and ovary. Orthologous to human EIF4ENIF1 (eukaryotic translation initiation factor 4E nuclear import factor 1). [provided by Alliance of Genome Resources, Apr 2022]