This gene encodes a nuclear protein, which colocalizes with mRNA splicing factors and intermediate filament-containing perinuclear networks. This protein has 95% amino acid sequence identity to the mouse Wbp11 protein. It contains two proline-rich regions that bind to the WW domain of Npw38, a nuclear protein, and thus this protein is also called Npw38-binding protein NpwBP. The Npw38-NpwBP complex may function as a component of an mRNA factory in the nucleus.WBP11 (WW Domain Binding Protein 11) is a Protein Coding gene. Diseases associated with WBP11 include Renpenning Syndrome. Among its related pathways are mRNA Splicing - Major Pathway and Gene Expression. GO annotations related to this gene include poly(A) RNA binding and WW domain binding.