T-lymphoma invasion and metastasis-inducing protein 2 (Tiam2)

Modulates the activity of RHO-like proteins and joins extracellular signals to cytoskeletal activities. Acts as a GDP- dissociation stimulator protein that stimulates the GDP-GTP exchange activity of RHO-like GTPases and activates them.

Mediates extracellular laminin signals to activate Rac1, contributing to neurite growth. Involved in lamellipodial formation and progress of the growth cone of embryonic hippocampal neurons.