1,4-alpha-glucan branching enzyme activity obsolete 1,4-alpha-glucan branching enzyme activity (using a glucosylated glycogenin as primer for glycogen synthesis) https://github.com/geneontology/go-ontology/issues/28286 true molecular_function OBSOLETE. Catalysis of the reaction: a glucosylated glycogenin = a glycogen. The reason for obsoletion is that this term is equivalent to GO:0003844 1,4-alpha-glucan branching enzyme activity. GO:0102752