Cav3.2 is a calcium channel of the T-type that is involved in many processes in the brain and other tissues. Contrary to other calcium channels Cav3.2 is activated by relatively low/negative voltages. Cav3.2 is not a classic cannabinoid receptor but its activity is modulated by cannabinoids. Since cannabinoids have a physiological effect on Cav3.2 it is effectively a cannabinoid receptor.

Chemical Name: 
Calcium channel, voltage-dependent, T type, alpha 1H subunit
IUPHAR entry: 
Wikipedia entry: 
Distribution: 

Kidney > liver > heart, brain.> lung, skeletal muscle, pancreas, placenta. Putamen > amygdala, caudate nucleus > frontal lobe, hippocampus, cerebellum, substantia nigra > thalamus > medulla, spinal cord, occipital lobe, temporal lobe.  

Receptors: 
Endocannabinoids: 
Phytocannabinoids: 
Literature Discussion: 

NarGly NADA Anandamide 2AG CBD Δ9THC

References:

Pertwee, R.G., Howlett, A.C., Abood, M.E., Alexander, S.P.H., Di Marzo, V., Elphick, M.R., Greasley, P.J., Hansen, H.S., Kunos, G., Mackie, K., et al. (2010). International Union of Basic and Clinical Pharmacology. LXXIX. cannabinoid receptors and their ligands: beyond CB₁ and CB₂. Pharmacol. Rev. 62, 588–631.