Enables several functions, including chromatin binding activity; mRNA 3'-UTR binding activity; and ribonucleoprotein complex binding activity. Involved in positive regulation of cold-induced thermogenesis. Acts upstream of or within germ cell development; negative regulation of binding activity; and posttranscriptional regulation of gene expression. Located in cytoplasm. Part of polysome. Is expressed in early conceptus; eye; gonad; and trunk somite. Orthologous to human YBX2 (Y-box binding protein 2). [provided by Alliance of Genome Resources, Apr 2022]