It is so extensively used in these days as a facility for the present Emperor to conduct his ichthyological research including goby and as a place to cultivate rice to be used in Niiname-sai festival (ceremonial offering by the Emperor of newly-harvested rice to the deities) for the year.
現在は今上天皇がハゼを始めとする魚類学の研究を行ったり、その年の新嘗祭を執り行う際に用いられる新穀米を栽培するなど多岐に亘って供用されている。