GO:0000287 magnesium ion binding
GO:0008152 metabolic process
GO:0009536 plastid
GO:0009899 ent-kaurene synthase activity
GO:0010333 terpene synthase activity
GO:0016829 lyase activity
GO:0034278 stemar-13-ene synthase activity
GO:0046872 metal ion binding
GO:0051501 diterpene phytoalexin metabolic process