Enables 1-phosphatidylinositol 4-kinase activity. Involved in basophil degranulation. Located in several cellular components, including cytoplasmic vesicle membrane; growing cell tip; and perikaryon. Part of protein-containing complex. Orthologous to human PI4K2A (phosphatidylinositol 4-kinase type 2 alpha). [provided by Alliance of Genome Resources, Apr 2022]