Enables RNA binding activity and translation initiation factor binding activity. Involved in several processes, including RNA metabolic process; positive regulation of intracellular signal transduction; and regulation of gene expression. Acts upstream of or within several processes, including miRNA metabolic process; negative regulation of glial cell differentiation; and regulation of gene expression. Located in nucleolus and rough endoplasmic reticulum. Is expressed in several structures, including early conceptus; embryo ectoderm; gonad; limb primordium; and tooth. Used to study nephroblastoma. Orthologous to human LIN28A (lin-28 homolog A). [provided by Alliance of Genome Resources, Apr 2022]