f0fa66e7___Tumors_of_the_Nervous_System__Function
[Type of Tumor] Oligodendroglioma [Cell of Origin] Oligodendrocyte [Function] 
Produces a substance called myelin, which covers the nerves and helps information to travel quickly between the brain and other parts of the body.
More about types of cancer and brain tumors & Tumors of the Nervous System
Function