Plays a role as a transcriptional activator involved in the early stage of somatic cell reprogramming. Promotes the differentiation of protein-induced pluripotent stem (PiPS) cells into endothelial cells and the formation of vascular-like tubes (in vitro). Involved in the transcription induction of vascular endothelial-cadherin (VE-cadherin) expression. Associates to the VE-cadherin gene promoter. . This is the function of SETSIP (SET like protein, Ensembl gene identifier ENSG00000230667).