Enables chromatin binding activity. Involved in positive regulation of pro-B cell differentiation; positive regulation of stem cell differentiation; and posttranscriptional regulation of gene expression. Located in nucleus. Is expressed in several structures, including alimentary system; central nervous system; genitourinary system; respiratory system; and sensory organ. Orthologous to human NUDT21 (nudix hydrolase 21). [provided by Alliance of Genome Resources, Apr 2022]