In the midst of the Sant Jaume mountain rage, at the boundary of the current municipalities of Riner and Llobera, was where the Castle of Riner, from which the church has been preserved, stood. The construction, dating back to the 12th century, is plain, with a single nave with a barrel vault that starts above a small moulding.
On the outside we can observe some monolithic arches and some sculptural elements of a popular nature, like a character laying with a hand on his chest and the other on this stomach. From a later era, a corpulent bell-tower, a porch, an attached graveyard and a sacristy can be appreciated.
On the inside, the Baroque altarpiece dedicated to Saint James shines, dating back to the second half of the 17th century and of anonymous authorship. Recently restored, it is headed by the figure of Saint James, accompanied by Saint Isidore on the left and Saint Peter on the right, of whom several episodes of their hagiographies are presented. The most notable, due to its iconographic rareness, is that of the transfer of Saint James’ mortal remains by sea, on ship lead by an angel.