Expression of SynjS1029E.Scer\UAS.T:Ivir\HA1 under the Scer\GAL4nSyb.PS driver rescues the active synaptic vesicle endocytosis as well as the abnormal rapid rundown of excitatory postsynaptic potential amplitude observed in the Synj1/Synj2 mutant larvae upon high frequency stimulation for a prolonged period of time.