The function of TBX5 (T-box transcription factor 5, ENSG00000089225) is as follows. DNA-binding protein that regulates the transcription of several genes and is involved in heart development and limb pattern formation (PubMed:25725155, PubMed:25963046, PubMed:26917986, PubMed:27035640, PubMed:29174768, PubMed:8988164). Binds to the core DNA motif of NPPA promoter (PubMed:26926761). {ECO:0000269|PubMed:25725155, ECO:0000269|PubMed:25963046, ECO:0000269|PubMed:26917986, ECO:0000269|PubMed:26926761, ECO:0000269|PubMed:27035640, ECO:0000269|PubMed:29174768, ECO:0000269|PubMed:8988164}.