At age 12, Funayama began curling in her hometown Tokoro, Hokkaido, joining Akiko Katoh's junior team together with Ayumi Ogasawara (then Onodera).

The team later represented Japan at the 2002 Winter Olympics, finishing in 8th place with a 2–7 record.

The team represented Japan at the 2006 Winter Olympics, where Funayama played third and Japan finished 7th with a 4–5 record, including a surprise win over one of the usual curling powerhouses, Canada.

Funayama got married and had a child before returning to the sport in the 2011-12 season.

At the Olympic Games, Funayama threw third stones under skip Ogasawara, and Japan finished in 5th place with a 4–5 record, winning against two former World Championship teams, Switzerland's Mirjam Ott and China's Wang Bingyu.