The function of Ensembl gene identifier ENSG00000072818 (ACAP1, ArfGAP with coiled-coil, ankyrin repeat and PH domains 1) is as follows. GTPase-activating protein (GAP) for ADP ribosylation factor 6 (ARF6) required for clathrin-dependent export of proteins from recycling endosomes to trans-Golgi network and cell surface. Required for regulated export of ITGB1 from recycling endosomes to the cell surface and ITGB1-dependent cell migration. {ECO:0000269|PubMed:11062263, ECO:0000269|PubMed:16256741, ECO:0000269|PubMed:17398097, ECO:0000269|PubMed:17664335, ECO:0000269|PubMed:22645133}.