binds inositol(1,3,4,5)tetrakisphosphate (InsP4) and phosphatidylinositol(3,4,5)trisphosphate (PtdInsP3)\;involved in inositol phosphate or inositol lipid signal transduction [RGD, Feb 2006].
Venkateswarlu, Oatey, Tavaré, Jackson, Cullen et al.: "Identification of centaurin-alpha1 as a potential in vivo phosphatidylinositol 3,4,5-trisphosphate-binding protein that is functionally homologous to the yeast ADP-ribosylation factor (ARF) ..." in: The Biochemical journal, Vol. 340 ( Pt 2), pp. 359-63, (1999) (PubMed).