Hi kitsee,

Based on the satellite imagery, it is an edge case (considering https://wiki.openstreetmap.org/wiki/Tag:junction%3Droundabout description). The give way positions imply that it can be a roundabout. 

But there is no shadow clearly marking the one-way/roundabout sign position inside the roundabout, or at the island at the forks. So the designated roundabout nature was not crystal clear.

If you can confirm (by local knowledge) that it is a proper roundabout, it can be retagged of course.