According to the TCDB cross reference, GO:0008519 ammonium transmembrane transporter activity is a channel, so the two children GO:0015398 high-affinity secondary active ammonium transmembrane transporter activity and
GO:0015400 low-affinity secondary active ammonium transmembrane transporter activity are incorrectly placed.
GO:0008519 ammonium transmembrane transporter activity GO:0015398 high-affinity secondary active ammonium transmembrane transporter activity GO:0015400 low-affinity secondary active ammonium transmembrane transporter activity
According to the TCDB cross reference, GO:0008519 ammonium transmembrane transporter activity is a channel, so the two children GO:0015398 high-affinity secondary active ammonium transmembrane transporter activity and GO:0015400 low-affinity secondary active ammonium transmembrane transporter activity are incorrectly placed.
Annotations are here: https://docs.google.com/spreadsheets/d/1tykMgU5ypmCJuhWuhlmIrHIXYtm50M2lZXhEG_yAGXE/edit#gid=0