DOCK3 activates RAC1 and contributes to recruitment of the RAC1 effector WASF1 (WAVE1). DOCK3-mediated activation of RAC1 is involved in BDNF-induced axonal sprouting (Namekata et al. 2010).
WASF1 has recently been implicated in endocytosis of the BDNF:NTRK2 (BDNF:TRKB) complex (Xu et al. 2016).