Enables MAP kinase kinase kinase activity; mitogen-activated protein kinase kinase binding activity; and small GTPase binding activity. Involved in several processes, including cellular response to nerve growth factor stimulus; positive regulation of ERK1 and ERK2 cascade; and response to cAMP. Located in neuron projection; nucleus; and plasma membrane. Used to study bile duct adenoma; cholangiocarcinoma; intrahepatic cholangiocarcinoma; and thyroid gland papillary carcinoma. Human ortholog(s) of this gene implicated in several diseases, including Noonan syndrome 7; carcinoma (multiple); cardiofaciocutaneous syndrome (multiple); central nervous system benign neoplasm (multiple); and melanoma (multiple). Orthologous to human BRAF (B-Raf proto-oncogene, serine/threonine kinase). [provided by Alliance of Genome Resources, Apr 2022]