Plays a structural role in chromatin. Involved in sister chromatid cohesion, probably via an interaction with the cohesin complex. Participates in the transcriptional activation mediated by remote enhancers on genes such as cut and Ubx, possibly by alleviating the cohesin-mediated blocking of enhancer-promoter communication. Ubiquitous. Expressed in all interphase nuclei in embryo, third instar imaginal disks, salivary glands and fat tissues. Expressed both maternally and zygotically. Belongs to the SCC2/Nipped-B family. Contaminating sequence. Potential poly-A sequence starting in position 2061.