Enables phosphatidylinositol binding activity and phosphatidylinositol transfer activity. Involved in several processes, including inositol lipid-mediated signaling; positive regulation of intracellular signal transduction; and positive regulation of phosphatidylinositol 3-kinase activity. Located in cytoplasm and plasma membrane. Orthologous to human TNFAIP8L3 (TNF alpha induced protein 8 like 3). [provided by Alliance of Genome Resources, Apr 2022]