Enables fibrinogen binding activity. Involved in platelet aggregation and positive regulation of leukocyte migration. Located in cell surface. Human ortholog(s) of this gene implicated in Glanzmann's thrombasthenia; platelet-type bleeding disorder 16; thrombocytopenia; and von Willebrand's disease 1. Orthologous to human ITGA2B (integrin subunit alpha 2b). [provided by Alliance of Genome Resources, Apr 2022]