Natina Reed -- Baby Daddy Kurupt Footing the Funeral Bill

Natina Reed's funeral is being held today in her hometown -- and TMZ has learned that rapper Kurupt, the father of her son, is covering all the expenses.

Reed -- who passed away on October 26 after she was struck by a car -- is being laid to rest at the Abundant Life Church in Lithonia, GA.

According to our sources, Kurupt -- the father of Reed's 10-year-old son Tren -- is footing the bill for the service as well as for the gathering after.

We're told Tren will remain in Kurupt's custody -- like he has for the past four years -- and that Kurupt hopes Tren will maintain a close relationship with Reed's family.