Chromatin-associated protein which contributes to the modulation of chromatin structure (such as super-helical structure of DNA) and function (By similarity). Binds to chromatin of protein-coding genes throughout the genome to regulate nucleosome occupancy and chromatin accessibility, and to modulate the expression of target genes (By similarity). Interacts with DEK3. Associates with chromatin (By similarity). Enriched in regions where chromatin is decondensed or sparse in the interphase nuclei (By similarity).