The centre-back made his first starting appearance of the season for the Toffees in their 3-2 win over West Bromwich Albion on Monday night and is hopeful of keeping his spot for Sunday's showdown with Liverpool at Goodison Park.
Ramiro has taken the field for River Plate against hated Buenos Aires rivals Boca Juniors and is well aware of what is at stake when a city's two biggest clubs meet.
"I played in lots of derbies," Funes Mori said.
"I scored in one and we won the game.
"The atmosphere of those games is very intense, the people are cheering and screaming and it's crazy.
"You feel the adrenaline when you play in those games. People are singing the whole 90 minutes and cheering for their team, you are very nervous and excited and it's very intense at all times.
"It's a Liverpool derby so it's going to be intense. You've got two rivals in the same city.
"Playing in the River-Boca games means I will maybe be more comfortable playing in the derby.
"It'll prepare me for them. I'd expect it's going to be intense and the adrenaline will be high."