Enables gamma-glutamyl carboxylase activity and vitamin binding activity. Involved in several processes, including lung growth; peptidyl-glutamic acid carboxylation; and response to vitamin. Located in intracellular membrane-bounded organelle. Biomarker of urolithiasis. Human ortholog(s) of this gene implicated in combined deficiency of vitamin K-dependent clotting factors 1. Orthologous to human GGCX (gamma-glutamyl carboxylase). [provided by Alliance of Genome Resources, Apr 2022]