Involved in platelet aggregation. Predicted to be located in plasma membrane. Predicted to be active in extracellular matrix and extracellular space. Predicted to colocalize with anchored component of external side of plasma membrane. Human ortholog(s) of this gene implicated in Bernard-Soulier syndrome; Bernard-Soulier syndrome type A2; myocardial infarction; non-arteritic anterior ischemic optic neuropathy; and platelet-type bleeding disorder 3. Orthologous to human GP1BA (glycoprotein Ib platelet subunit alpha). [provided by Alliance of Genome Resources, Apr 2022]