Enables DNA binding activity. Involved in positive regulation of gene expression and positive regulation of transcription, DNA-templated. Acts upstream of or within forebrain development; keratinocyte differentiation; and myelination in peripheral nervous system. Located in nucleus. Part of transcription regulator complex. Is expressed in several structures, including alimentary system; central nervous system; early conceptus; sensory organ; and urinary system. Orthologous to human POU3F1 (POU class 3 homeobox 1). [provided by Alliance of Genome Resources, Apr 2022]