Enables GTP binding activity; GTPase activating protein binding activity; and GTPase activity. Acts upstream of or within with a positive effect on angioblast cell migration from lateral mesoderm to midline. Acts upstream of or within Wnt signaling pathway, calcium modulating pathway; positive regulation of epiboly involved in gastrulation with mouth forming second; and regulation of convergent extension involved in axis elongation. Located in plasma membrane. Is expressed in blastomere; posterior cardinal vein; trunk vasculature; vascular cord; and vasculature. Orthologous to several human genes including SEC14L2 (SEC14 like lipid binding 2) and SEC14L3 (SEC14 like lipid binding 3).