The function of Ensembl gene identifier ENSG00000110697 (PITPNM1, phosphatidylinositol transfer protein membrane associated 1) is as follows. Membrane-associated phosphatidylinositol (PI) transfer protein that shuttles PI between intracellular membranes and thereby maintains plasma-membrane phosphoinositide signaling competence (PubMed:10531358, PubMed:22822086, PubMed:25887399, PubMed:26028218, PubMed:41129229). Transfers phosphatidylinositol from the endoplasmic reticulum to the plasma membrane and mediates counter-transport of phosphatidic acid (PA) from the plasma membrane to the endoplasmic reticulum at endoplasmic reticulum-plasma membrane contact sites, this PI/PA exchange is required for sustained PLC-coupled receptor signaling and for replenishment of plasma membrane phosphoinositide following receptor-induced hydrolysis (PubMed:10531358, PubMed:22822086, PubMed:26028218). Regulates RHOA activity, and plays a role in cytoskeleton remodeling (PubMed:11909959). Necessary for normal completion of cytokinesis (PubMed:15125835). Plays a role in maintaining normal diacylglycerol levels in the Golgi apparatus (PubMed:15723057). Necessary for maintaining the normal structure of the endoplasmic reticulum and the Golgi apparatus (PubMed:15545272). Required for protein export from the endoplasmic reticulum and the Golgi (PubMed:11909959, PubMed:15545272, PubMed:15723057). {ECO:0000269|PubMed:10531358, ECO:0000269|PubMed:11909959, ECO:0000269|PubMed:15545272, ECO:0000269|PubMed:15723057, ECO:0000269|PubMed:22822086, ECO:0000269|PubMed:25887399, ECO:0000269|PubMed:26028218, ECO:0000269|PubMed:41129229}.