Predicted to enable copper ion binding activity and oxidoreductase activity. Predicted to be involved in blood coagulation, intrinsic pathway. Predicted to act upstream of or within acute-phase response and hemostasis. Predicted to be located in extracellular region. Predicted to be active in extracellular space. Is expressed in several structures, including brain; cardiovascular system; genitourinary system; gut; and liver and biliary system. Used to study factor VIII deficiency. Human ortholog(s) of this gene implicated in factor VIII deficiency. Orthologous to human F8 (coagulation factor VIII). [provided by Alliance of Genome Resources, Apr 2022]